<!DOCTYPE html>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<svg height="0" font-size="100"><text></text></svg>
<script>
test(function() {
  var text = document.querySelector('text');
  assert_equals(text.getBBox().width, 0, 'before adding text content');
  text.textContent = 'MMMMM';
  assert_greater_than(text.getBBox().width, 0, 'after adding text content');
  text.textContent = '';
  assert_equals(text.getBBox().width, 0, 'after clearing text content');
}, 'Bounding box of <text> changes to empty when text content is changed to empty.');
</script>
